Generally, strengthening exercises can involve either extension or flexion exercises.

一般来说，力量练习可以包括屈曲或伸展练习。

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Do the strengthening exercises every other day. The stretching exercises can be done daily.

强化运动两天作一次，而伸展运动可以每天都作。

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That is why it is a good idea to take time to do eye-relaxing and eye-strengthening exercises.

这正是为什么花时间进行放松及增强眼部的运动是个好主意。

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And try not to forget those muscle strengthening exercises.

VOA: special.2010.06.08

Migrating in reverse, Joseph Pilates' eponymous strengthening exercises for dancers started in New York in the 1930s.

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Warm up inside, and incorporate stretches (especially for the hamstrings) as well as core-strengthening exercises such as mini sit-ups, crunches, or working an exercise ball.

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For office workers who spend a lot of time sitting, Klion recommends postural exercises to strengthen the abdomen and lower back, as well as upper back and shoulder strengthening.

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